<template>
  <div class="login-container">
    <el-form :model="loginForm" :rules="loginRules" auto-complete="on" class="login-form" label-position="left"
             ref="loginForm">

      <div class="title-container">
        <h3 class="title">小狼直播 - 登录</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user"/>
        </span>
        <el-input
          auto-complete="on"
          name="username"
          placeholder="请输入用户名"
          ref="username"
          tabindex="1"
          type="text"
          v-model="loginForm.username"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"/>
        </span>
        <el-input
          :key="passwordType"
          :type="passwordType"
          @keyup.enter.native="handleLogin"
          auto-complete="on"
          name="password"
          placeholder="请输入密码"
          ref="password"
          tabindex="2"
          v-model="loginForm.password"
        />
        <span @click="showPwd" class="show-pwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </span>
      </el-form-item>

      <el-dialog :title="dialogTitle" :visible.sync="dialogFormVisible" destroy-on-close width="40%">
        <!--<div>
          <validate-code @change="changeCode" ref="ref_validateCode"/>
          <br>
          <input type="text" v-model="inputVal" placeholder="请输入验证码">
          <br>
          {{result}}
        </div>-->

        <slide-verify :l="42"
                      :r="10"
                      :w="310"
                      :h="155"
                      slider-text="向右滑动"
                      @success="onSuccess"
                      @fail="onFail"
                      @refresh="onRefresh"/>
        <div>{{msg}}</div>

        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="submitForm">提 交</el-button>
      </el-dialog>

      <el-button :loading="loading" @click.native.prevent="handleLogin" style="width:100%;margin-bottom:30px;" type="primary">Login</el-button>

    </el-form>
  </div>
</template>

<script>
  /*import validateCode from "@/components/ValidateCode";*/

  const msgSuccess = '恭喜你,验证码校验成功'
  const msgFail = '验证码校验失败,请稍后重新校验'

  export default {
    name: 'Login',
    /*components: {
      validateCode
    },*/
    data() {
      const validatePassword = (rule, value, callback) => {
        if (value.length < 6) {
          callback(new Error('密码长度不能小于 6 位'))
        } else {
          callback()
        }
      }
      return {
        msg: '',
        dialogTitle: '请你校验验证码',
        dialogFormVisible: false,
        /*inputVal: '',
        checkCode: '',
        result: '',*/
        loginForm: {
          username: 'admin',
          password: '111111'
        },
        loginRules: {
          username: [{required: true, message: '用户名不能为空'}],
          password: [{required: true, trigger: 'blur', validator: validatePassword}]
        },
        loading: false,
        passwordType: 'password',
        redirect: undefined
      }
    },
    /*props: {},
    created() {
    },
    mounted() {
    },
    computed: {},*/
    watch: {
      $route: {
        handler: function (route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true
      }
    },
    methods: {
      onSuccess(){
        this.msg = msgSuccess
      },
      onFail(){
        this.msg = msgFail
      },
      onRefresh(){
        this.msg = msgFail
      },



      /*   TODO*/
      /*changeCode(value) {
        this.checkCode = value;
      },
      compare() {

      },*/
      showPwd() {
        if (this.passwordType === 'password') {
          this.passwordType = ''
        } else {
          this.passwordType = 'password'
        }
        this.$nextTick(() => {
          this.$refs.password.focus()
        })
      },
      handleLogin(){
        // 清空上一次的数据
        this.msg = ''
        // 3. 显示对话框
        this.dialogFormVisible = true
      },
      submitForm() {
        /*if (this.inputVal.toUpperCase() === this.checkCode) {
          this.result = "验证输入成功!";
        } else {
          this.result = "验证码错误,请重新输入";
          this.inputVal = "";
          this.$refs["ref_validateCode"].draw();
        }*/
        if (this.msg === msgSuccess){
          // 登录参数校验
          this.$refs.loginForm.validate(valid => {
            if (valid) {
              // 如果校验通过
              this.loading = true
              // Vuex 状态管理组件
              // 负责实现 Vue 组件间的交互
              // 模块名/action方法名
              this.$store.dispatch('user/login', this.loginForm).then(() => {
                this.$router.push({path: this.redirect || '/'})
                this.loading = false
              }).catch(() => {
                this.loading = false
              })
            } else {
              // 校验失败
              console.log('error submit!!')
              return false
            }
            this.dialogFormVisible = false
          })
        }
      },
    }
  }
</script>

<style lang="scss">
  /* 修复input 背景不协调 和光标变色 */
  /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

  $bg: #283443;
  $light_gray: #fff;
  $cursor: #fff;

  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
      color: $cursor;
    }
  }

  /* reset element-ui css */
  .login-container {
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;

      input {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;

        &:-webkit-autofill {
          box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }

    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
  }
</style>

<style lang="scss" scoped>
  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;

  .login-container {
    min-height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;

    .login-form {
      position: relative;
      width: 520px;
      max-width: 100%;
      padding: 160px 35px 0;
      margin: 0 auto;
      overflow: hidden;
    }

    .tips {
      font-size: 14px;
      color: #fff;
      margin-bottom: 10px;

      span {
        &:first-of-type {
          margin-right: 16px;
        }
      }
    }

    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
    }

    .title-container {
      position: relative;

      .title {
        font-size: 26px;
        color: $light_gray;
        margin: 0px auto 40px auto;
        text-align: center;
        font-weight: bold;
      }
    }

    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
      user-select: none;
    }
  }
</style>
